Someone on this site posted their opinion on the Wyze camera but it was lost in the crash. I am reposting the info because I just set mine up tonight and so far so good. It narcs to your phone when it hears something or detects movement or both. Infrared as well. I was wearing a black tee shirt at night and it came out as white on the video so the infrared is working quite well. Either or both features (sound and motion) can be turned down or turned off but why would you? Mine has picked up my movements quite well. Very short time lag before reporting to your phone. It's some assurance for $25.00. Here's a youtube on it. Very easy to set up...
https://www.youtube.com/watch?v=LMK-9ag5yJw
I use them, they work great.